TY - JOUR
T1 - Dipole moments and electronic absorption spectra of aryltricyanoethylenes
AU - Agranat, Israel
AU - Rappoport, Zvi
AU - Weiler-Feilchenfeld, Hannah
PY - 1970
Y1 - 1970
N2 - The dipole moments of several aryltricyanoethylenes have been measured and found to be higher than those calculated by vector addition. This deviation is probably due to partial charge separation, facilitated by the pronounced ability of the tricyanovinyl group to spread the negative charge. This view is supported by the linear relation between the dipole moment μ and Hammett's σ constant and by the fact that μmeas-μcalc is proportional to Brown's σ+ value and to the energy of the longest wavelength transition in the electronic spectra.
AB - The dipole moments of several aryltricyanoethylenes have been measured and found to be higher than those calculated by vector addition. This deviation is probably due to partial charge separation, facilitated by the pronounced ability of the tricyanovinyl group to spread the negative charge. This view is supported by the linear relation between the dipole moment μ and Hammett's σ constant and by the fact that μmeas-μcalc is proportional to Brown's σ+ value and to the energy of the longest wavelength transition in the electronic spectra.
UR - http://www.scopus.com/inward/record.url?scp=0014762362&partnerID=8YFLogxK
U2 - 10.1039/TF9706600769
DO - 10.1039/TF9706600769
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:0014762362
SN - 0014-7672
VL - 66
SP - 769
EP - 773
JO - Transactions of the Faraday Society
JF - Transactions of the Faraday Society
ER -